Testing desockmulti on server #3
Description
hello zyingp i have question on how desockmulti works
i write vulnerable server for testing desockmulti
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#define PORT 8080
int main(int argc, char const* argv[])
{
int server_fd, new_socket, valread;
struct sockaddr_in address;
int opt = 1;
int addrlen = sizeof(address);
char buffer[30] = { 0 };
char* hello = "Hello from server";
// Creating socket file descriptor
if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
perror("socket failed");
exit(EXIT_FAILURE);
}
// Forcefully attaching socket to the port 8080
if (setsockopt(server_fd, SOL_SOCKET,
SO_REUSEADDR | SO_REUSEPORT, &opt,
sizeof(opt))) {
perror("setsockopt");
exit(EXIT_FAILURE);
}
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(PORT);
// Forcefully attaching socket to the port 8080
if (bind(server_fd, (struct sockaddr*)&address,
sizeof(address))
< 0) {
perror("bind failed");
exit(EXIT_FAILURE);
}
if (listen(server_fd, 3) < 0) {
perror("listen");
exit(EXIT_FAILURE);
}
if ((new_socket
= accept(server_fd, (struct sockaddr*)&address,
(socklen_t*)&addrlen))
< 0) {
perror("accept");
exit(EXIT_FAILURE);
}
valread = read(new_socket, buffer, 1024);
printf("%s\n", buffer);
send(new_socket, hello, strlen(hello), 0);
printf("Hello message sent\n");
// closing the connected socket
close(new_socket);
// closing the listening socket
shutdown(server_fd, SHUT_RDWR);
return 0;
}
and than i use afl to fuzz this program
but regarding of my buffer[30] or my input i cant get any error form this
i even test
USE_RAW_FORMAT=1 LD_PRELOAD=./desockmulti-master/desockmulti.so ss/server in/base_test.txt
to directly give input to sever but seems like its not working
Sorry for some newbie question and thanks for your time